Past Paper 2025 10th Class Karachi Board Biology English Medium Objective

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BIOLOGY 2025

Max. Marks: 60 Time: 3 Hour

SECTION “A” MULTIPLE CHOICE QUESTIONS (MCQs)

Marks: 12

NOTE: (i) Attempt all the Questions of this Section.
(ii) Do not copy down the part questions. Write only the answer against the proper number of the Question and its part according to the question Paper.
(iii) Each question carries 1 Marks

1. Choose the correct Answer form the given Options:

(i) The process of maintaining body temperature within suitable limit, is called:
*Homeotherm
*Osmoregulation
*Heterotherm
*Thermoregulation✓

(ii) The type of reproduction in yeast is:
*Fission
*Budding✓
*Fragmentation
*Spores formation

(iii) Respiratory surface processes the property:
*Thin and wet
*Permeable
*very large
*All of these✓

(iv) The kidney is enclosed in a membrane which is called:
*Pericardium
*Peritoneum✓
*Pleural membrane
*Plumule

(v) In this type of movement, organisms move towards or get away from the stimulus by growing their organ:
*Locomotory movement
*Tropic movement✓
*Nastic movement
*Paratonic movement

(vi) The dough rises during alcoholic fermentation due to:
*Methyl alcohol
*Carbon dioxide✓
*Ethyl alcohol
*Water

(vii) The inner thin layer of seed coat is called:
*Texta
*Chalaza
*Cotaladyn
*Tegmen✓

(viii) The pair of muscles where both work in opposite direction is:
*Antagonist✓ *Cardiac
*Smooth *Abductor

(ix) “Kitab ul Manazir” was written by:
*Jabir Bin Hayan
*Ibn-ul-Haitham✓
*Ali Ibn-e-Isa
*Bu-Ali-Sina

(x) Knee joint is an example of:
*Ball and Socket joint
*Sliding joint
*Hinge point✓
*Immovable joint

(xi) The cells of nervous system are called:
*Nerve
*Stem cell
*Effector
*Neuron✓

(xii) It is always at the beginning of a food chain:
*Herbivores
*Carnivores
*Decomposers
*Producers✓

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